We'd like to send some samples to people who might be interested to exchange a video or post+pictures review on our website/social medias.All your good suggestions about the new products are welcomed and we'll try our best to improve the products.

We'd like to send some samples to people who might be interested to exchange a video or post+pictures review on our website/social medias.All your good suggestions about the new products are welcomed and we'll try our best to improve the products.

Please PM me.

I tried to load info from your website. The pages load extremely slow, although I have a high-speed connection

You use images, like this one http://www.ecowitt.com/upfile/201812/WH31%20001%20(1).png which are 1000*1000 pixels but are shown in 457*457 pixels. And there are 6 or 7 of these images on one page. Also it seems that all images must be loaded before the rest of the page is shown.Visiting the site a second time gives normal response times as the images come from the browser cache.That is probably why you do not find the load-times bad when you are visiting your own website.

We'd like to send some samples to people who might be interested to exchange a video or post+pictures review on our website/social medias.All your good suggestions about the new products are welcomed and we'll try our best to improve the products.

Please PM me.

I tried to load info from your website. The pages load extremely slow, although I have a high-speed connection

You use images, like this one http://www.ecowitt.com/upfile/201812/WH31%20001%20(1).png which are 1000*1000 pixels but are shown in 457*457 pixels. And there are 6 or 7 of these images on one page. Also it seems that all images must be loaded before the rest of the page is shown.Visiting the site a second time gives normal response times as the images come from the browser cache.That is probably why you do not find the load-times bad when you are visiting your own website.

Thanks for your feedback about the website and your useful suggestions about the images issue. We'll try to fix that as soon as possible.Sorry for the bad experience.Your any other good suggestions about our website/products/service will all be welcomed and appreciated.Thank you!

Would there be any purpose to the PM2.5 sensor to be indoor? I'm just wondering if it could tell you things like time to air out the house and open some windows. Or is its purpose really only for outdoor use?

I presume the PM2.5 has a fan in it to circulate air and then measure air particles using a laser and a photometer. So how loud is the fan? Is it detectable that there is a fan or is it not detectable? And if it is detectable how bad is it? Some fans have really loud annoying pitch to them where as others are more low frequency and not as irritating.

I just brought it inside as thought I should recharge the batteries - they say fully charged can last for about 20 days (about 500 hours) and I've had it for 13 days but has been very cold here. But battery indicator seems to show full now that I have it plugged in.

I know very little about air quality and sensors but there seems to be no moving parts and certainly no fan sound or visible.No noticeable data change since I've had it inside for about 20 minutes.